Last refreshed 2026-05-11. Next refresh: weekly.
Why use o4-mini on OpenRouter?
OpenRouter offers o4-mini with pay-as-you-go pricing at $1.10/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare o4-mini across 3 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: openai/o4-miniopenai/o4-miniRequest example
openai/o4-mini.Gotchas
- Use provider model ID "openai/o4-mini", not the LLMReference slug "o4-mini".
Compare o4-mini Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenAI API | $1.10 | $4.40 |
| OpenRouter | $1.10 | $4.40 |
| Replicate API | $1.00 | $4.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $1.10 |
| Output tokens | $4.40 |
Capabilities
About o4-mini
Fast and cost-efficient reasoning model with vision support for math, coding, and visual understanding. Retired from ChatGPT February 13, 2026 but still available via API. Released April 16, 2025.
FAQ
What does o4-mini cost on OpenRouter?
On OpenRouter, o4-mini costs $1.1 per 1M input tokens and $4.4 per 1M output tokens.
What is the context window for o4-mini on OpenRouter?
o4-mini supports a 200,000 token context window on OpenRouter.
How does OpenRouter compare to other o4-mini providers?
o4-mini is available from 3 providers. The cheapest input pricing is $1/1M tokens from Replicate API.
What API model ID do I use for o4-mini on OpenRouter?
Use the model ID openai/o4-mini when calling OpenRouter's API.
Who created o4-mini?
o4-mini was created by OpenAI as part of the o3 model family.
Is o4-mini open source?
o4-mini is not open source; the seed data lists it as proprietary.